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In my role as a DM, I usually avoided significant use of luck during my D&D sessions. I tended was for story direction and what happened in a game to be determined by player choice instead of random chance. That said, I decided to try something different, and I'm very glad I did.

The Spark: Seeing a Custom Mechanic

A well-known streamed game showcases a DM who often calls for "fate rolls" from the adventurers. This involves picking a specific dice and assigning potential outcomes tied to the number. This is at its core no unlike using a pre-generated chart, these are created spontaneously when a character's decision doesn't have a predetermined conclusion.

I decided to try this technique at my own game, mostly because it seemed novel and presented a departure from my standard routine. The outcome were eye-opening, prompting me to reflect on the perennial tension between pre-determination and improvisation in a D&D campaign.

A Memorable Session Moment

At a session, my party had concluded a city-wide battle. When the dust settled, a player wondered if two key NPCs—a pair—had made it. Instead of deciding myself, I let the dice decide. I instructed the player to roll a d20. The possible results were: a low roll, both would perish; on a 5-9, only one succumbed; on a 10+, they both lived.

The die came up a 4. This triggered a profoundly poignant sequence where the party came upon the corpses of their allies, still clasped together in their final moments. The group performed last rites, which was particularly meaningful due to prior story developments. In a concluding touch, I improvised that the NPCs' bodies were suddenly transformed, showing a magical Prayer Bead. By chance, the item's contained spell was perfectly what the party lacked to solve another pressing situation. One just orchestrate these kinds of serendipitous coincidences.

Honing DM Agility

This incident made me wonder if chance and thinking on your feet are in fact the beating heart of D&D. Even if you are a prep-heavy DM, your improvisation muscles may atrophy. Players often find joy in derailing the best constructed narratives. Therefore, a good DM must be able to think quickly and fabricate content in the moment.

Employing on-the-spot randomization is a great way to develop these talents without going completely outside your comfort zone. The key is to apply them for minor situations that have a limited impact on the campaign's main plot. To illustrate, I wouldn't use it to establish if the king's advisor is a traitor. However, I would consider using it to determine whether the PCs reach a location right after a major incident takes place.

Enhancing Player Agency

Luck rolls also serves to make players feel invested and create the feeling that the story is dynamic, evolving based on their choices immediately. It prevents the feeling that they are merely pawns in a DM's sole narrative, thereby bolstering the shared aspect of roleplaying.

This philosophy has long been part of the original design. Early editions were filled with encounter generators, which suited a game focused on exploration. While contemporary D&D frequently prioritizes story and character, leading many DMs to feel they need exhaustive notes, this isn't always the best approach.

Finding the Sweet Spot

It is perfectly no issue with being prepared. But, there is also no problem with relinquishing control and permitting the rolls to determine certain outcomes rather than you. Direction is a big factor in a DM's role. We use it to facilitate play, yet we frequently find it hard to cede it, at times when doing so might improve the game.

My final advice is this: Have no fear of letting go of your plan. Experiment with a little randomness for inconsequential outcomes. The result could find that the unexpected outcome is infinitely more powerful than anything you might have pre-written in advance.